1 files changed, 13 insertions, 2 deletions
diff --git a/source/slang/slang-ast-builder.h b/source/slang/slang-ast-builder.h
index 3023e274d..91fe63c88 100644
--- a/source/slang/slang-ast-builder.h
+++ b/source/slang/slang-ast-builder.h
@@ -155,9 +155,20 @@ public:
 
         /// Create AST types 
     template <typename T>
-    T* create() { return _initAndAdd(new (m_arena.allocate(sizeof(T))) T); }
+    T* create()
+    {
+        auto alloced = m_arena.allocate(sizeof(T));
+        memset(alloced, 0, sizeof(T));
+        return _initAndAdd(new (alloced) T);
+    }
+
     template<typename T, typename... TArgs>
-    T* create(TArgs... args) { return _initAndAdd(new (m_arena.allocate(sizeof(T))) T(args...)); }
+    T* create(TArgs... args)
+    {
+        auto alloced = m_arena.allocate(sizeof(T));
+        memset(alloced, 0, sizeof(T));
+        return _initAndAdd(new (alloced) T(args...));
+    }
 
     template<typename T, typename ... TArgs>
     SLANG_FORCE_INLINE T* getOrCreate(TArgs ... args)